====================================================== WARNING: possible circular locking dependency detected 4.14.302-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.0/10284 is trying to acquire lock: (&event->child_mutex){+.+.}, at: [] perf_event_for_each_child+0x82/0x140 kernel/events/core.c:4690 but task is already holding lock: (&cpuctx_mutex){+.+.}, at: [] perf_event_ctx_lock_nested+0x14d/0x2c0 kernel/events/core.c:1241 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #5 (&cpuctx_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 perf_event_init_cpu+0xb7/0x170 kernel/events/core.c:11291 perf_event_init+0x2cc/0x308 kernel/events/core.c:11338 start_kernel+0x45d/0x763 init/main.c:624 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:240 -> #4 (pmus_lock){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 perf_event_init_cpu+0x2c/0x170 kernel/events/core.c:11285 cpuhp_invoke_callback+0x1e6/0x1a80 kernel/cpu.c:186 cpuhp_up_callbacks kernel/cpu.c:574 [inline] _cpu_up+0x21e/0x520 kernel/cpu.c:1193 do_cpu_up+0x9a/0x160 kernel/cpu.c:1229 smp_init+0x197/0x1ac kernel/smp.c:578 kernel_init_freeable+0x406/0x626 init/main.c:1074 kernel_init+0xd/0x15d init/main.c:1006 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406 -> #3 (cpu_hotplug_lock.rw_sem){++++}: percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] cpus_read_lock+0x39/0xc0 kernel/cpu.c:297 static_key_slow_inc+0xe/0x20 kernel/jump_label.c:123 tracepoint_add_func+0x747/0xa40 kernel/tracepoint.c:269 tracepoint_probe_register_prio kernel/tracepoint.c:331 [inline] tracepoint_probe_register+0x8c/0xc0 kernel/tracepoint.c:352 trace_event_reg+0x272/0x330 kernel/trace/trace_events.c:305 perf_trace_event_reg kernel/trace/trace_event_perf.c:122 [inline] perf_trace_event_init kernel/trace/trace_event_perf.c:197 [inline] perf_trace_init+0x424/0xa30 kernel/trace/trace_event_perf.c:221 perf_tp_event_init+0x79/0xf0 kernel/events/core.c:8145 perf_try_init_event+0x15b/0x1f0 kernel/events/core.c:9379 perf_init_event kernel/events/core.c:9417 [inline] perf_event_alloc.part.0+0xe2d/0x2640 kernel/events/core.c:9677 perf_event_alloc kernel/events/core.c:10047 [inline] SYSC_perf_event_open kernel/events/core.c:10151 [inline] SyS_perf_event_open+0x683/0x2530 kernel/events/core.c:10037 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 -> #2 (tracepoints_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 tracepoint_probe_register_prio kernel/tracepoint.c:327 [inline] tracepoint_probe_register+0x68/0xc0 kernel/tracepoint.c:352 trace_event_reg+0x272/0x330 kernel/trace/trace_events.c:305 perf_trace_event_reg kernel/trace/trace_event_perf.c:122 [inline] perf_trace_event_init kernel/trace/trace_event_perf.c:197 [inline] perf_trace_init+0x424/0xa30 kernel/trace/trace_event_perf.c:221 perf_tp_event_init+0x79/0xf0 kernel/events/core.c:8145 perf_try_init_event+0x15b/0x1f0 kernel/events/core.c:9379 perf_init_event kernel/events/core.c:9417 [inline] perf_event_alloc.part.0+0xe2d/0x2640 kernel/events/core.c:9677 perf_event_alloc kernel/events/core.c:10047 [inline] SYSC_perf_event_open kernel/events/core.c:10151 [inline] SyS_perf_event_open+0x683/0x2530 kernel/events/core.c:10037 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 -> #1 (event_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 perf_trace_destroy+0x23/0xf0 kernel/trace/trace_event_perf.c:234 _free_event+0x321/0xe20 kernel/events/core.c:4246 free_event+0x32/0x40 kernel/events/core.c:4273 perf_event_release_kernel+0x368/0x8a0 kernel/events/core.c:4417 perf_release+0x33/0x40 kernel/events/core.c:4443 __fput+0x25f/0x7a0 fs/file_table.c:210 task_work_run+0x11f/0x190 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0xa44/0x2850 kernel/exit.c:868 SYSC_exit kernel/exit.c:934 [inline] SyS_exit+0x1e/0x20 kernel/exit.c:932 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 -> #0 (&event->child_mutex){+.+.}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 perf_event_for_each_child+0x82/0x140 kernel/events/core.c:4690 _perf_ioctl+0x471/0x1a60 kernel/events/core.c:4877 perf_ioctl+0x55/0x80 kernel/events/core.c:4889 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 other info that might help us debug this: Chain exists of: &event->child_mutex --> pmus_lock --> &cpuctx_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&cpuctx_mutex); lock(pmus_lock); lock(&cpuctx_mutex); lock(&event->child_mutex); *** DEADLOCK *** 1 lock held by syz-executor.0/10284: #0: (&cpuctx_mutex){+.+.}, at: [] perf_event_ctx_lock_nested+0x14d/0x2c0 kernel/events/core.c:1241 stack backtrace: CPU: 0 PID: 10284 Comm: syz-executor.0 Not tainted 4.14.302-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1905 [inline] check_prevs_add kernel/locking/lockdep.c:2022 [inline] validate_chain kernel/locking/lockdep.c:2464 [inline] __lock_acquire+0x2e0e/0x3f20 kernel/locking/lockdep.c:3491 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 perf_event_for_each_child+0x82/0x140 kernel/events/core.c:4690 _perf_ioctl+0x471/0x1a60 kernel/events/core.c:4877 perf_ioctl+0x55/0x80 kernel/events/core.c:4889 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7f2c6ceb00d9 RSP: 002b:00007f2c6b422168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f2c6cfcff80 RCX: 00007f2c6ceb00d9 RDX: 0000000000000006 RSI: 0000000000002403 RDI: 0000000000000003 RBP: 00007f2c6cf0bae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc48fa61cf R14: 00007f2c6b422300 R15: 0000000000022000 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 relay: one or more items not logged [item size (56) > sub-buffer size (9)] relay: one or more items not logged [item size (56) > sub-buffer size (9)] blktrace: Concurrent blktraces are not allowed on loop6 relay: one or more items not logged [item size (56) > sub-buffer size (9)] relay: one or more items not logged [item size (56) > sub-buffer size (9)] relay: one or more items not logged [item size (56) > sub-buffer size (9)] relay: one or more items not logged [item size (56) > sub-buffer size (9)] blktrace: Concurrent blktraces are not allowed on loop6 relay: one or more items not logged [item size (56) > sub-buffer size (9)] relay: one or more items not logged [item size (56) > sub-buffer size (9)] blktrace: Concurrent blktraces are not allowed on loop6 blktrace: Concurrent blktraces are not allowed on loop6 blktrace: Concurrent blktraces are not allowed on loop6 blktrace: Concurrent blktraces are not allowed on loop6 relay: one or more items not logged [item size (56) > sub-buffer size (9)] relay: one or more items not logged [item size (56) > sub-buffer size (9)] blktrace: Concurrent blktraces are not allowed on loop6 blktrace: Concurrent blktraces are not allowed on loop6 relay: one or more items not logged [item size (56) > sub-buffer size (9)] netlink: 20 bytes leftover after parsing attributes in process `syz-executor.1'. EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue kauditd_printk_skb: 18 callbacks suppressed audit: type=1804 audit(1671561470.095:78): pid=10651 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.3" name="/root/syzkaller-testdir3981245250/syzkaller.zZqUdQ/65/file0/bus" dev="loop3" ino=18 res=1 EXT4-fs error (device loop3): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters EXT4-fs (loop3): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop3): This should not happen!! Data will be lost EXT4-fs (loop3): Total free blocks count 0 IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check. EXT4-fs (loop3): Free/Dirty block details EXT4-fs (loop3): free_blocks=2415919104 audit: type=1804 audit(1671561470.105:79): pid=10651 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.3" name="/root/syzkaller-testdir3981245250/syzkaller.zZqUdQ/65/file0/bus" dev="loop3" ino=18 res=1 EXT4-fs (loop3): dirty_blocks=16 EXT4-fs (loop3): Block reservation details EXT4-fs (loop3): i_reserved_data_blocks=1 EXT4-fs (loop3): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop3): This should not happen!! Data will be lost netlink: 20 bytes leftover after parsing attributes in process `syz-executor.1'. EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue netlink: 20 bytes leftover after parsing attributes in process `syz-executor.1'. EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue audit: type=1804 audit(1671561470.766:80): pid=10720 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.3" name="/root/syzkaller-testdir3981245250/syzkaller.zZqUdQ/66/file0/bus" dev="loop3" ino=18 res=1 audit: type=1804 audit(1671561470.766:81): pid=10723 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir2041777761/syzkaller.ctA6G9/50/file0/bus" dev="loop0" ino=18 res=1 EXT4-fs error (device loop3): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters EXT4-fs error (device loop0): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters EXT4-fs (loop3): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 netlink: 20 bytes leftover after parsing attributes in process `syz-executor.1'. EXT4-fs (loop3): This should not happen!! Data will be lost EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop3): Total free blocks count 0 EXT4-fs (loop3): Free/Dirty block details EXT4-fs (loop3): free_blocks=2415919104 EXT4-fs (loop3): dirty_blocks=16 EXT4-fs (loop3): Block reservation details IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check. EXT4-fs (loop3): i_reserved_data_blocks=1 EXT4-fs (loop3): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop3): This should not happen!! Data will be lost EXT4-fs error (device loop5): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters audit: type=1804 audit(1671561470.766:82): pid=10723 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.0" name="/root/syzkaller-testdir2041777761/syzkaller.ctA6G9/50/file0/bus" dev="loop0" ino=18 res=1 EXT4-fs (loop5): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop0): This should not happen!! Data will be lost syz-executor.3 (10720) used greatest stack depth: 24896 bytes left EXT4-fs (loop0): Total free blocks count 0 EXT4-fs (loop0): Free/Dirty block details EXT4-fs (loop5): This should not happen!! Data will be lost audit: type=1804 audit(1671561470.796:83): pid=10720 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.3" name="/root/syzkaller-testdir3981245250/syzkaller.zZqUdQ/66/file0/bus" dev="loop3" ino=18 res=1 EXT4-fs (loop5): Total free blocks count 0 EXT4-fs (loop0): free_blocks=2415919104 EXT4-fs (loop5): Free/Dirty block details EXT4-fs (loop5): free_blocks=2415919104 EXT4-fs (loop0): dirty_blocks=16 EXT4-fs (loop0): Block reservation details EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop5): dirty_blocks=16 EXT4-fs (loop0): i_reserved_data_blocks=1 EXT4-fs (loop5): Block reservation details EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop5): i_reserved_data_blocks=1 EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop0): This should not happen!! Data will be lost audit: type=1804 audit(1671561470.846:84): pid=10725 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.5" name="/root/syzkaller-testdir1327941581/syzkaller.IcxDDc/56/file0/bus" dev="loop5" ino=18 res=1 EXT4-fs (loop5): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs error (device loop4): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters EXT4-fs (loop5): This should not happen!! Data will be lost EXT4-fs error (device loop1): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters audit: type=1804 audit(1671561470.846:85): pid=10725 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.5" name="/root/syzkaller-testdir1327941581/syzkaller.IcxDDc/56/file0/bus" dev="loop5" ino=18 res=1 EXT4-fs (loop4): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop1): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop4): This should not happen!! Data will be lost EXT4-fs (loop4): Total free blocks count 0 EXT4-fs (loop1): This should not happen!! Data will be lost audit: type=1804 audit(1671561471.546:86): pid=10783 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir2908200827/syzkaller.GNBFTA/55/file0/bus" dev="loop4" ino=18 res=1 EXT4-fs error (device loop3): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters EXT4-fs (loop4): Free/Dirty block details EXT4-fs (loop3): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop1): Total free blocks count 0 EXT4-fs (loop3): This should not happen!! Data will be lost EXT4-fs (loop4): free_blocks=2415919104 EXT4-fs (loop3): Total free blocks count 0 EXT4-fs (loop3): Free/Dirty block details EXT4-fs (loop3): free_blocks=2415919104 EXT4-fs (loop3): dirty_blocks=16 EXT4-fs (loop3): Block reservation details EXT4-fs (loop3): i_reserved_data_blocks=1 IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check. EXT4-fs (loop3): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop1): Free/Dirty block details EXT4-fs (loop3): This should not happen!! Data will be lost audit: type=1804 audit(1671561471.556:87): pid=10783 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir2908200827/syzkaller.GNBFTA/55/file0/bus" dev="loop4" ino=18 res=1 EXT4-fs (loop4): dirty_blocks=16 EXT4-fs (loop1): free_blocks=2415919104 EXT4-fs (loop4): Block reservation details EXT4-fs (loop1): dirty_blocks=16 EXT4-fs (loop4): i_reserved_data_blocks=1 EXT4-fs (loop1): Block reservation details EXT4-fs (loop4): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop1): i_reserved_data_blocks=1 EXT4-fs (loop1): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop4): This should not happen!! Data will be lost EXT4-fs (loop1): This should not happen!! Data will be lost EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue syz-executor.3 (10791) used greatest stack depth: 24880 bytes left EXT4-fs error (device loop0): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters EXT4-fs error (device loop5): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop5): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop0): This should not happen!! Data will be lost EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop5): This should not happen!! Data will be lost EXT4-fs (loop0): Total free blocks count 0 EXT4-fs (loop0): Free/Dirty block details EXT4-fs (loop5): Total free blocks count 0 EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop0): free_blocks=2415919104 EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop5): Free/Dirty block details EXT4-fs (loop0): dirty_blocks=16 EXT4-fs (loop5): free_blocks=2415919104 EXT4-fs (loop0): Block reservation details EXT4-fs (loop5): dirty_blocks=16 EXT4-fs (loop0): i_reserved_data_blocks=1 EXT4-fs (loop5): Block reservation details EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop5): i_reserved_data_blocks=1 EXT4-fs (loop0): This should not happen!! Data will be lost EXT4-fs (loop5): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop5): This should not happen!! Data will be lost IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready chnl_net:chnl_net_open(): err: Unable to register and open device, Err:-19 caif:caif_disconnect_client(): nothing to disconnect chnl_net:chnl_flowctrl_cb(): NET flowctrl func called flow: CLOSE/DEINIT chnl_net:chnl_net_open(): state disconnected A link change request failed with some changes committed already. Interface caif0 may have been left with an inconsistent configuration, please check. EXT4-fs error (device loop1): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters EXT4-fs error (device loop4): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters EXT4-fs error (device loop3): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters EXT4-fs (loop1): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop4): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop3): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop1): This should not happen!! Data will be lost EXT4-fs (loop3): This should not happen!! Data will be lost EXT4-fs (loop4): This should not happen!! Data will be lost EXT4-fs (loop3): Total free blocks count 0 EXT4-fs (loop1): Total free blocks count 0 EXT4-fs (loop4): Total free blocks count 0 EXT4-fs (loop3): Free/Dirty block details EXT4-fs (loop4): Free/Dirty block details EXT4-fs (loop3): free_blocks=2415919104 EXT4-fs (loop1): Free/Dirty block details EXT4-fs (loop3): dirty_blocks=16 EXT4-fs (loop1): free_blocks=2415919104 EXT4-fs (loop3): Block reservation details EXT4-fs (loop4): free_blocks=2415919104 EXT4-fs (loop1): dirty_blocks=16 EXT4-fs (loop4): dirty_blocks=16 EXT4-fs (loop3): i_reserved_data_blocks=1 EXT4-fs (loop1): Block reservation details EXT4-fs (loop3): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop4): Block reservation details EXT4-fs (loop3): This should not happen!! Data will be lost EXT4-fs (loop1): i_reserved_data_blocks=1 EXT4-fs (loop1): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop4): i_reserved_data_blocks=1 EXT4-fs (loop1): This should not happen!! Data will be lost EXT4-fs (loop4): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop4): This should not happen!! Data will be lost EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue netlink: 20 bytes leftover after parsing attributes in process `syz-executor.3'. EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue netlink: 20 bytes leftover after parsing attributes in process `syz-executor.3'. EXT4-fs error (device loop5): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters EXT4-fs error (device loop0): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters print_req_error: I/O error, dev loop1, sector 0 EXT4-fs (loop5): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop0): This should not happen!! Data will be lost EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop0): Total free blocks count 0 netlink: 20 bytes leftover after parsing attributes in process `syz-executor.3'. EXT4-fs (loop5): This should not happen!! Data will be lost EXT4-fs (loop0): Free/Dirty block details EXT4-fs (loop0): free_blocks=2415919104 EXT4-fs (loop0): dirty_blocks=16 EXT4-fs (loop0): Block reservation details EXT4-fs (loop0): i_reserved_data_blocks=1 EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop0): This should not happen!! Data will be lost EXT4-fs (loop5): Total free blocks count 0 EXT4-fs (loop5): Free/Dirty block details EXT4-fs error (device loop1): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters EXT4-fs (loop5): free_blocks=2415919104 EXT4-fs error (device loop4): ext4_mb_generate_buddy:754: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters EXT4-fs (loop1): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop5): dirty_blocks=16 EXT4-fs (loop1): This should not happen!! Data will be lost EXT4-fs (loop4): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop1): Total free blocks count 0 EXT4-fs (loop5): Block reservation details EXT4-fs (loop1): Free/Dirty block details EXT4-fs (loop5): i_reserved_data_blocks=1 EXT4-fs (loop1): free_blocks=2415919104 EXT4-fs (loop1): dirty_blocks=16 EXT4-fs (loop1): Block reservation details EXT4-fs (loop1): i_reserved_data_blocks=1 EXT4-fs (loop1): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop4): This should not happen!! Data will be lost EXT4-fs (loop1): This should not happen!! Data will be lost EXT4-fs (loop5): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop5): This should not happen!! Data will be lost EXT4-fs (loop4): Total free blocks count 0 EXT4-fs (loop4): Free/Dirty block details EXT4-fs (loop4): free_blocks=2415919104 EXT4-fs (loop4): dirty_blocks=16 EXT4-fs (loop4): Block reservation details EXT4-fs (loop4): i_reserved_data_blocks=1 EXT4-fs (loop4): Delayed block allocation failed for inode 18 at logical offset 0 with max blocks 1 with error 28 EXT4-fs (loop4): This should not happen!! Data will be lost